Aseptic lighting torch



1927. Apnl 19 w. GEULEN ASEPTIC LIGHTING TORCH Filed Nov. 9.V 1925 Patented Apr, 19, 1927. Y*

U fr orale TILHELM GEULEN, DECEASED, LATE OF FREIBURG, GERMANY; BY KLARA GE'ULEN,

NE SCHREIBER, EXECUTRIX, 0F FREIBURG, GERMANY, ASSGNOR TO CARL HER- ZOG, OF FREIBURG, GERMANY.

ASEPTIC LIGHTING TORCH.

Application led November 9, 1925, Serial No. 68,008, and in Germany May 1U, 1924i This invention has for its object to inlprov-ed lighting torch is shown in elevation prove the construction of the rod-shaped in connection with a pocket-lamp battery, torches for medical purposes in which the the glass tube being' bent at its rear end exchangeable source of light and the Wires almost at right angles.

5 are enclosed in a glass tube closed at the i is the glass tube of darlecoloured glass, front end by melting. t) the front end of the same Which is closed The improvement consists in making the by melting' and made either from transtransparent front end and the handle of the parent or milky White glass. In the glass torch in one piece and of the same material, tube a the incandescent lamp c and a porlo e. a glass tube, which with the exception tion of the cable (l are located, the cable ofthe front portion enclosing` the source being` securely held in the rear end of the of light, is of dark colour to avoid light retube by a stopper f. Any suitable flexion in the direction of the eyes of the means may be provided for centering the observant. This new manner of making the light bulb in the end of the tube, one eX- .5 rear part of the glass tube non-transparent ample of which will be to make those porpresents, in comparison With the commonly tions of the cable Z which are located inside used method according to which with this the tube sutiiciently stift' or rigid to hold the object in view a sleeve of hard rubber or light bulb in its centered position. The the like is stripped over the rear part of the plusY Contact g serves to connect the cable 20 tube, the considerable advantage as re- (Z Ywith the battery la.

l.Q'ards aseptics that the surface of the torch I claim is perfectl)7 smooth over itsentire length so An aseptic torch comprising a. glass tube that there are no joints which are to be having' a transparent end portion, an inrendered germ-free by aseptic treatment candescent lamp in said portion to emit light onlyv with great diticulty. The improved therethrough, the remainder of the tube prelighting torch can be manufactured at comsentiugv opaque surfaces to the lamp Whereparativelv low cost. As the lighting torch by light transmission in the direction of the is made from the same material throughout, eyes of the observant is prevented, and e, of glass, it cannot expand irregularly means for connecting the lamp to aV source- 0 when heated, so that fracture of the glass of light.

is n'evented. In testimony whereof I affix my signature.

An embodiment of the invention is shown by Way of example, on the accompanying KLAR GEULEN e SCHREBER' 

